基于微波特征的储氢气瓶塑料内胆及碳纤维层缺陷识别

doi:10.19936/j.cnki.2096-8000.20260728.011

摘要/Abstract

摘要： 为实现塑料内胆及碳纤维层的无损检测,本文采用微波检测技术,对含预制缺陷的塑料片与碳纤维样品展开实验研究。首先,设计了四种铺层角度的碳纤维样品,并对塑料片及碳纤维试件进行了缺陷加工;然后,通过微波检测系统对样品进行测试,结合检测数据完成缺陷评估与特征分析。结果表明:0°铺层角度下透射参数(S₂₁)稳定性最佳,拟合度最高,此时微波信号受干扰最小,最利于缺陷检测。此外,缺陷会显著改变微波透射,不同类型缺陷在S参数上呈现独特的变化规律,可用于缺陷识别。本研究为储氢气瓶复合材料结构的微波无损检测提供了参数优化依据与缺陷识别新思路。

关键词: 微波无损检测, 储氢气瓶, 碳纤维, 塑料内胆, 缺陷

Abstract: To realize the non-destructive detection of plastic liners and carbon fiber layers, microwave detection technology was used to conduct experimental research on prefabricated defective plastic sheets and carbon fiber samples. Firstly, carbon fiber samples with fourlayupangles were designed, and the plastic sheets and carbon fiber specimens were processed for defects. Then, the sample was tested by the microwave inspection system, and the defect evaluation and characterization were completed in combination with the detection data. The results show that the transmission parameter (S₂₁) has the best stability and the highest fitting degree at 0° layup angles, and the microwave signal is the least interfered with, which is the most conducive to defect detection. In addition, defects can significantly change the microwave transmission, and different types of defects show unique changes in the S-parameters, which can be used for defect identification. This study provides a parameter optimization basis and a new approach for defect identification for the microwave non-destructive testing of hydrogen storage cylinder composite structures.

Key words: microwave non-destructive testing, hydrogen storage cylinders, carbon fiber, plastic liner, defect

中图分类号:

TB332

郭凯, 卞昭沛, 凌晓, 牛江, 姚勇创. 基于微波特征的储氢气瓶塑料内胆及碳纤维层缺陷识别[J]. 复合材料科学与工程, 2026, 0(7): 93-99.

GUO Kai, BIAN Zhaopei, LING Xiao, NIU Jiang, YAO Yongchuang. Defect identification of plastic liner and carbon fiber layer of hydrogen storage cylinder based on microwave characteristics[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(7): 93-99.

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